Insole-lip-forming machine.



W. B. WHITE.

INSOLE LIP' FORMING MACHINE.

APPLIUATION FILED SEPT. z8, 1908.

l 977,767. Patented Dec. 6,1910.

2 SHEETS-SHEET 1.

Patented Dec. 6, 1910.

Z SHEETS-SHEET 2.

nga

i. I JQ '.1 Y

Imam M l Wirren Wiag,

ef" v Z8 rnar s INSOLE-LIP-FORMING MACHINE.

armer.

Specification of Letters Patent.

Patented Dec. 6, 1910.

Application :filed September 28, 1908. Serial No. 454,987.

ing drawings, is a specification, like letters on the drawings representing like parts.

My invention relates to apparatus for making iiisoles for boots and shoes and particularly for making a composite bead or lip on insoles for welted boots and shoes.

lilly invention may be best understood by the. following description of one embodiment thereof, illustrated in the accompany* ing drawings, wherein,-

Figure 1 is a side elevation of the machine as a whole; Fig. is a detail plan view enlarged to show the sole in position to be acted upon by the instrumentalities for forming a bead or flange thereon; Fig. 3 is Fig. 4 is a ver- 2 tical section taken on line 4 4 of Fig. 2;; Figs. 5, 6, 7 and 8 are details of the rotary' cutter knife; and, Figs. 9, 10 and 11 illus-` a front elevation of F ig. 1;

trate steps in the forming of the composite bead to receive the stitching.

Referring to the drawings; my machine comprises a frame having a base 1, and front i and rear upright members 2 and 3 thereon supporting a swinging D-shaped frame 4 hinged on the pin 5 to the rear frame niember 3 and adapted to oscillate on said pin and be guidedin its oscillation by means of bifurcations G extending upwardly from the front upright member V2. Said swinging frame may be limited in its downward oscillation by means of a stop 7, forming the base of said bifurcations and may be drawn yieldingly toward said stop by a spring 8 attached to the base 1 and the lower side of the said swinging frame 4. A main drive shaft 9 maybe mounted in bearings 10 and 11 of said frame4 and at one end in an auxiliary bearing 12 supported by an arm 13 extending forwardly from said frame. The shaft 9 may extend rearwardly from said frame 4 to receive suitable drive pulleys 14 and 15. A tool carrying head 16 may be adjustablv mounted on a projection extending forl wardly from said swinging frame 4.

A vertical cutting knife 18 for forming a oted to said toe at 20 and extends rearwardly i therefrom and may have a slot 21 permitting a vertical adjustment thereof to vary the depth of the cut in said sole. A horizontal cut transverse to and at the base of the cut made by said knife may be formed by means of a horizontal rotary cutter 22, driven by a suitable vertical shaft 23 mounted in a forward enlarged bearing 24 forming a part of said head 16. This shaft may be driven by a bevel gear 25 on the upper end thereof, meshing with a bevel gear 26 on said main shaft 9.

Referring more in detail tothe rotary cutter 22 (Figs. 5, 6, 7 and 8), a sharpened disk 27 has an elongated slot 28 with its edge chamfered. This disk is held in position against an enlarged head 29 on a post 30 and is secured thereto by means of a suit-V able screw 31, the beveled head of which engages the chamfered edge of the slot 28 and holds said disk securely against the head 29. Continued use of the cutting disk 27 may wear o this edge more or less and thereby reduce the diameter of the disk. In order that a channel of uniform width may be produced from time to time it will be necessary to compensate for this wear. After the cutting disk is worn down the screw 31 may be loosened and the disk 27 moved from a concentric (Fig. 5) position with relation to said screw to a position eccentric thereto (Fig. 8) and the screw 31 may be then tightened and a channel will becut of the same width as prior to reduction of its diameter by wear.

The rotary cutter supporting post 30 is held in a hollow end 32 of said vertical shaft 23 and may be adjusted therein to cut a horizontal slit of varying distance from the-surface of the insole by means of a screw 33. 1t will be observed that the vertical and horizontal cuts made by the slitting knife 18 and the rot-ary cutter 22, respectively, form a T-shaped cut (Fig. 9) in the insole, defining a channel 36 and two distinct lips 34 cut out of the insole body of sufiicient material substantially to fill said channel.

To spread the lips and press them outwardly into a position to open the channel 36, the leather may be moistened and the above described cutters followed by suitable shaping fingers 37 mounted on the head 1G tothe rear of the rotary cutter 22 and held adjustably by suitable screws 38 passing through a slot 39 in the shank of said shaping fingers. The ends of said fingers which extend between the lips 34 may be laterally inclined toward each other, comprising a sort of plow (Fig. 2) and present an external surface engaging the opposed edges of the lips 34 formed by the T-shaped cut. Said lips receive a primary spread by the rwedge-shape of the slitting knife 18 and a secondary spread by the impact of the inner faces of the lips 34 against the shank of the rotary tool carrying post 30 (Fig. 2). The fingers 37 give the slit a farther spread of sufficient width to receive a filling strip 38. The latter preferably is wedgeshaped in cross section (Fig. 11), having its greatest width at its lower side. This strip 38 is introduced into the channel 36, so that its back having the greatest width will rest in the bottom of said channel 36 and its tapering sides 39 will be intimately engaged by said lips because of their tendency to return to their original position as cut.

The filling strip 38 may be positioned in the channel 36 by introducing the same over a guide spool 40 (Figs. 2 and 4), the latter being provided with flanged ends 41, tapered to conform to the inclined sides 39 of the filling strip 38. The inner faces 42 of said flanges may be roughened or knurled in order to insure a positive feed. This guide spool 40 may be mounted on a shaft 43, supported in one end by an adjustable bearing 44 having an elongated extension 44 adjustaloly attached to the tool supporting head 16 by means of screws 45 and a slot 46. Said shaft may be supported in its opposite end in a suitable bearing 47, mounted in the rear frame member 3. And the longitudinal movement of said shaft- Inay be limited b y means of a stop 48 adjacent the bearing 47 and a flange 49 adjacent Said bearing 44. The shaft 43 may be driven from the main shaft 9 by means of the bevel gear 50 mounted thereon and meshing with the bevel gear 51 mounted on the end of a vertical shaft 52 carrying at its lower end a worm 53 meshing with a worm wheel 54 on the shaft 55. Said vertical shaft 52 may be mounted in an upper bearing 5,6, projecting inwardly from the rear upright member 3 and at its lower end in a bearing 57 integral with the base 1. Said horizontal shaft 55 may be supported in suitable bearings 58, 59 in the front and rear upright members 2 and 3. The chain of gears between the shafts 9 and 43 is completed by the intermeshing spur gears 60 and 61 mounted on the shaftsy 43 and 55, respectively. Y

It will be apparent that the devices above armed described form a composite bead made up of the lips 34 embracing the strip 38. For skiving 0r feather-ing the marginal portion of the sole between the bead and the edge thereof, a suitable skiving knife 62 may be adjustably attached to the under side of the bea-ring 44 by any suitable arrangement, such as screws 63.

It will be observed that the slitting knife 18, the rotary cutter 22, the shaping ngers 37, the guide spool 40 andthe skiving knife 62, each have an independent adjustment and also a common adjustment by virtue of their attachment to the head 16, the latter being adjustably mounted on the swinging frame 4. The location of the channel 36 with respect to the edge of the sole may be determined by a curved finger or guide 64 adjustably attached by screws 65 to the front of the bearing 44.

The sole material may be supported and fed into the machine by a suitable rotary table 66, supported by an arm 67 extending Y laterally from the upright frame member 2 and inclined slightly downwardly. This table 66 is preferably provided with a face tapering outwardly toward its periphery to compensate for the inclination ofits supporting arm and present a horizontal support at the location of the bead 'forming'devices. rlhe surface of said table may be roughened or knurled to enga-ge the work and positively move it without slipping. The

"table 66 may be rotated in its supporting arm 67 by a bevel gear 68 attached thereto, the latter being driven by a bevel gear 69 meshing therewith and mounted on the shaft F5, which is driven from the main shaft 9, as hereinbefore described. Mounted Vabove said rotary table 66 and engaging the inner lip of the composite bead, may be an auxiliary feeding device 70, mounted herein on an inclined shaft 71, the Vlatter being held in its inclined position by means of the lower bearing 72 in the end of a curved arm 73 extending from the front end of the swinging frame member 4. The upper end of said shaft may be supported in an inclined bearing 74 on the Varm 13. The face of the auxiliaryV feed tool y70 is preferably inclined from its center toward its periphery and being `mounted on an V inclined shaft only a portion of itsbearing vface is inren-V gagement with the sole material at one time, The said tool 70 may be rotated at a speed to conform with that of the table 66 by means ofthe worm gear 75 mounted on the upper end of said inclined shaft 71 and meshing with the worm 76 on the outer end of the shaft 9. The composite bead forming devices all being mounted on the swinging frame 4, will be held in yielding engagement with the insole material by the spring 6 and the channel in said material will there-- fore be of a uniform depth with respect to the surface of the material operated upon, any little irregularity in the thickness of the sole being thus compensated for.

'It will be observed that the disk-shaped critter presents a rotary cutting edge which advances readily after the vertical slitting knife forming a uniform cut without tearing the leather. The lips of the composite bead are regular and uniform and present surfaces accurately conforming to the shape of the filling strip and intimately embracing the same, thus providing` a composite bead of great strength without weakening the insole material.

It will be understood that my invention is not limited to the particular embodiment herein shown and described, but that various modilications thereof may be made without departing from the spirit and scope of my invention.

Claims.

1. A machine of the class described comprising, in combination, incising cutters shaped and related for forming a channel and lips of sufficient material substantially to fill said channel, one of said cutters being a disk.

2. A machine of the class described comprising, in combination, independently supported incising cutters shaped and related for making transverse slits to form a channel and lips of suthcientmaterial substantially to lill said channel.

3. A machine of the class described comprising, in combination, cutting devices including an incising cutter and a rotary cutter for forming a channel and lips of suflicient material substantially to lill said channel.

4f. A machine of the class described comprising, in combination, cutting devices including a vertical incising cutter and a rotary horizontal cutter for forming` a channel and lips of sufficient material substantially to lill said channel.

5. A machine of the class described comprising, in combination, cutters for making transverse slits to fo-rm a channel and opposed lips of su'liicient material substantially to lill said channel, said cutters being relatively arranged so that one follows through the slit formed by the other.

6. A machine of the class described comprising, in combination, a vertical slitting knife and a rotary cutter for forming a channel in a sole and lips of sufficient material substantially to fill said channel.

7. A machine of the class described comprising, in combination, incising cutters for forming in a sole a channel and opposed lips of suiiicient material substantially to fill said channel, and means to feed said sole past said cutters, one of the latter having a movement of its own independent of said feeding movement,

S. A machine of the class described comprising, in combination, relatively adjustable incisingl cutters for forming a channel having lips of sutlicient material substantially to lill said channel.

9. A machine of the class described comprising, in combination, cutting devices including a vertical cutter and horizontal cutter spaced therefrom for making transverse slits in a sole to form a channel having lips of suflicient material substantially to fill said channel.

10. A machine of the class described comprising, in combination, cutters for forming a lipped channel and means to introduce a filling strip into said channel between said lips.

11. A machine of the class described comprising, in combination, cutters for forming a lipped channel and means to spread apart said lips and introduce a filling strip into said channel.

12. A machine of the class described comprising, in combination, cutters for making transverse slits in a sole to form a lipped channel and a feeding spool for introducing a filling strip into said channel between said lips.

13. A machine of the class described coinprising, in combination, cutting devices for forming transverse slits in a sole, includingl an incising cutter and a rotary disk cutter, and provision for adjusting the latter from a concentric to an eccentric position to vary the extent of its cut.

14. A machine of the class described comprising, in combination, cutting devices for forming slits in a sole including a vertical slitting cutter and a rotary cutter, the latter following the former and adapted to make a cut beneath the surface of said sole, said rotary cutter comprising an adjustable cutter disk for varying the extent of its cut.

` 15. A machine of the class described comprising, in combination, slitting cutters for forming a channel and lips of sufficient material substantially to till sait channel and means independently to adjust said cutters.

16. An apparatus of the class described comprising, in combination, vertical and rotary slitting means for forming lips or flanges, and shaping means for spreading the lips thus formed.

17. An apparatus of the class described comprising, in combination, vertical slitting means and rotary horizontal slitting means for cutting lips from a sole, shaping means for formino' said lips, and means for guiding a lling strip into position between said lips.

18. A device of the class described comprising, in combination, vertical slitting means, horizontal rotary slitting means, shaping means for spreading the parts so cut into the form of a channel, and means for introducing al filling strip of dove-tail section into the channel thus foimed.

19.7An apparatus of the class described comprising, in combination, a vertical cutter for making a primar f cut, a rotary cutter for making a secondary cut, shaping devices for spreading the parts thus cut, a guide for introducing a filling st-rip into the channel formed by the displacement of said parts, and a cutting knife for feathering peripheral portions of the sole.

20. An apparatus for forming a composite bead on insoles comprising, in combination, a vertical cutter for giving the sole an initial cut, a horizontal, rotary cutter for giving the sole a horizontal cut transverse to the base of said vertical cut, spreading devices for spreading the lips formed by said cuts, and a rotary spool for guiding a filling strip into the channel formed by the displacement of said lips.

21. An apparatus for forming a bead on insoles comprising, in combination7 a rotary work supporting table for feeding the work, an auxiliary rotary feeding device mounted in opposed relation thereto, and cutting means comprising a stationary and a rotary cutter for slitting the sole in transverse lines, and means for introducing a filling piece between the lips formed by said slits.

22. A device of the class described comprising, in combination, a swinging frame, an auxiliary head adj ustably mounted thereon; vertical slitting means and horizontal, rotary slitting means for forming a T- shaped cut in the sole; shaping means for temporarily giving the parts an extended spread; and guiding means for introducing a filling strip between the lips formed by said cuts, the latter automatically closely engaging said strip after the introduction of the latter between the same.

23. An apparatus for forming a coniposite bead on insoles comprising, in combination, a spring pressed, swinging frame, a head adjustably mounted thereon supporting a vertical slitting means and a horizontal slitting means for forming a T cut in the sole; a shaping means for giving the lips formed by said cut an extended spread; and skiving means for feathering the edge of the sole, each of said devices being independently adjustable on said head.

24. In an apparatus for forming a bead on insoles, the combination of a pivoted spring pressed head frame, a vertical and a rotary cutter for forming a T-shaped cut in a sole; said head adapted to support said cutting devices to form a channel of uniform depth in said sole irrespective of irregularities in the thickness thereof. f

25. In an apparatus for forming a composite bead on insoles, the combination of a head, a shaft mounted therein, a bracket mounted on said head, a knife pivotally and adj ustably mounted on the latter for making a vertical cut in a sole, a rotary cutter mounted in the end of said shaft, and adapted to form a cut following the formation of said vertical cut, fingers for pressing back the lips made by said cuts to form a channel, and a spool for feeding a filling strip into the channel thus formed, saidspool having flanged, knurled faces conforming to the shape of said strip.

26. In an apparatus of the class described, the combination of a vertical slitting knife and a rotary cutter for forming a T-shaped cut in a sole; fingers for spreading the lips made by said cut to form a channel, a spool for feeding a filling strip into the channel thus formed, a shaft for su porting said spool, a bearing for said shaflf, and a skiving knife mounted on one of said bearings to give the sole a feathered edge.

27. A machine ofthe class described comprising in combination cutting means for' forming a channel and means following said cutting means and cooperating therewith to introduce a filling strip into said channel.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

W'ARREN B. vWHITE.

lVitnesses EVERETT S. EMERY, HENRY T. WILLIAMS. 

